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Recombinant human DPP4 protein is a Human Full Length protein, in the 39 to 766 aa range, expressed in Baculovirus infected BTI-TN-5B1-4, with >95% purity and suitable for WB, SDS-PAGE.

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Images

SDS-PAGE - Recombinant human DPP4 protein (AB79138), expandable thumbnail
  • Functional Studies - Recombinant human DPP4 protein (AB79138), expandable thumbnail
  • Western blot - Recombinant human DPP4 protein (AB79138), expandable thumbnail

Publications

Key facts

Purity
>95% SDS-PAGE
Expression system
Baculovirus infected BTI-TN-5B1-4 cells
Tags
His tag C-Terminus
Applications
WB, SDS-PAGE
Biologically active
Yes

Amino acid sequence

S R K T Y T L T D Y L K N T Y R L K L Y S L R W I S D H E Y L Y K Q E N N I L V F N A E Y G N S S V F L E N S T F D E F G H S I N D Y S I S P D G Q F I L L E Y N Y V K Q W R H S Y T A S Y D I Y D L N K R Q L I T E E R I P N N T Q W V T W S P V G H K L A Y V W N N D I Y V K I E P N L P S Y R I T W T G K E D I I Y N G I T D W V Y E E E V F S A Y S A L W W S P N G T F L A Y A Q F N D T E V P L I E Y S F Y S D E S L Q Y P K T V R V P Y P K A G A V N P T V K F F V V N T D S L S S V T N A T S I Q I T A P A S M L I G D H Y L C D V T W A T Q E R I S L Q W L R R I Q N Y S V M D I C D Y D E S S G R W N C L V A R Q H I E M S T T G W V G R F R P S E P H F T L D G N S F Y K I I S N E E G Y R H I C Y F Q I D K K D C T F I T K G T W E V I G I E A L T S D Y L Y Y I S N E Y K G M P G G R N L Y K I Q L S D Y T K V T C L S C E L N P E R C Q Y Y S V S F S K E A K Y Y Q L R C S G P G L P L Y T L H S S V N D K G L R V L E D N S A L D K M L Q N V Q M P S K K L D F I I L N E T K F W Y Q M I L P P H F D K S K K Y P L L L D V Y A G P C S Q K A D T V F R L N W A T Y L A S T E N I I V A S F D G R G S G Y Q G D K I M H A I N R R L G T F E V E D Q I E A A R Q F S K M G F V D N K R I A I W G W S Y G G Y V T S M V L G S G S G V F K C G I A V A P V S R W E Y Y D S V Y T E R Y M G L P T P E D N L D H Y R N S T V M S R A E N F K Q V E Y L L I H G T A D D N V H F Q Q S A Q I S K A L V D V G V D F Q A M W Y T D E D H G I A S S T A H Q H I Y T H M S H F I K Q C F S L P S G R L V P R G S H H H H H H

Reactivity data

Application
WB
Reactivity
Reacts
Dilution info
-
Notes

ab79138 can be used as a WB positive control in conjunction with ab86806.

Application
SDS-PAGE
Reactivity
Reacts
Dilution info
-
Notes

On SDS-PAGE under denatured condition, apparent molecular weight of glycosylated CD26 protein will be approximately 90kDa.

Associated Products

Select an associated product type

2 products for Alternative Product

Target data

Function

Cell surface glycoprotein receptor involved in the costimulatory signal essential for T-cell receptor (TCR)-mediated T-cell activation (PubMed:10900005, PubMed:10951221, PubMed:11772392, PubMed:17287217). Acts as a positive regulator of T-cell coactivation, by binding at least ADA, CAV1, IGF2R, and PTPRC (PubMed:10900005, PubMed:10951221, PubMed:11772392, PubMed:14691230). Its binding to CAV1 and CARD11 induces T-cell proliferation and NF-kappa-B activation in a T-cell receptor/CD3-dependent manner (PubMed:17287217). Its interaction with ADA also regulates lymphocyte-epithelial cell adhesion (PubMed:11772392). In association with FAP is involved in the pericellular proteolysis of the extracellular matrix (ECM), the migration and invasion of endothelial cells into the ECM (PubMed:10593948, PubMed:16651416). May be involved in the promotion of lymphatic endothelial cells adhesion, migration and tube formation (PubMed:18708048). When overexpressed, enhanced cell proliferation, a process inhibited by GPC3 (PubMed:17549790). Acts also as a serine exopeptidase with a dipeptidyl peptidase activity that regulates various physiological processes by cleaving peptides in the circulation, including many chemokines, mitogenic growth factors, neuropeptides and peptide hormones such as brain natriuretic peptide 32 (PubMed:10570924, PubMed:16254193). Removes N-terminal dipeptides sequentially from polypeptides having unsubstituted N-termini provided that the penultimate residue is proline (PubMed:10593948). (Microbial infection) Acts as a receptor for human coronavirus MERS-CoV-2.

Alternative names

Recommended products

Recombinant human DPP4 protein is a Human Full Length protein, in the 39 to 766 aa range, expressed in Baculovirus infected BTI-TN-5B1-4, with >95% purity and suitable for WB, SDS-PAGE.

Key facts

Purity
>95% SDS-PAGE
Expression system
Baculovirus infected BTI-TN-5B1-4 cells
Applications
WB, SDS-PAGE
Biological activity
Specific activity is > 200unit/mg, One unit produces 1.0 umole of p-Nitroaniline from Gly-Pro- p-Nitroaniline per minute at pH 8.0 at 37°C.
Accession
P27487-1
Animal free
No
Species
Human
Concentration
Loading...
Storage buffer

pH: 8
Constituents: 10% Glycerol (glycerin, glycerine), 0.58% Sodium chloride, 0.316% Tris HCl, 0.0292% EDTA

Sequence info

Amino acid sequence

S R K T Y T L T D Y L K N T Y R L K L Y S L R W I S D H E Y L Y K Q E N N I L V F N A E Y G N S S V F L E N S T F D E F G H S I N D Y S I S P D G Q F I L L E Y N Y V K Q W R H S Y T A S Y D I Y D L N K R Q L I T E E R I P N N T Q W V T W S P V G H K L A Y V W N N D I Y V K I E P N L P S Y R I T W T G K E D I I Y N G I T D W V Y E E E V F S A Y S A L W W S P N G T F L A Y A Q F N D T E V P L I E Y S F Y S D E S L Q Y P K T V R V P Y P K A G A V N P T V K F F V V N T D S L S S V T N A T S I Q I T A P A S M L I G D H Y L C D V T W A T Q E R I S L Q W L R R I Q N Y S V M D I C D Y D E S S G R W N C L V A R Q H I E M S T T G W V G R F R P S E P H F T L D G N S F Y K I I S N E E G Y R H I C Y F Q I D K K D C T F I T K G T W E V I G I E A L T S D Y L Y Y I S N E Y K G M P G G R N L Y K I Q L S D Y T K V T C L S C E L N P E R C Q Y Y S V S F S K E A K Y Y Q L R C S G P G L P L Y T L H S S V N D K G L R V L E D N S A L D K M L Q N V Q M P S K K L D F I I L N E T K F W Y Q M I L P P H F D K S K K Y P L L L D V Y A G P C S Q K A D T V F R L N W A T Y L A S T E N I I V A S F D G R G S G Y Q G D K I M H A I N R R L G T F E V E D Q I E A A R Q F S K M G F V D N K R I A I W G W S Y G G Y V T S M V L G S G S G V F K C G I A V A P V S R W E Y Y D S V Y T E R Y M G L P T P E D N L D H Y R N S T V M S R A E N F K Q V E Y L L I H G T A D D N V H F Q Q S A Q I S K A L V D V G V D F Q A M W Y T D E D H G I A S S T A H Q H I Y T H M S H F I K Q C F S L P S G R L V P R G S H H H H H H
Accession
P27487
Protein length
Full Length
Amino acids
39 to 766
Nature
Recombinant
Tags
His tag C-Terminus

Specifications

Form
Liquid
Additional notes

Affinity purified

General info

Function

Cell surface glycoprotein receptor involved in the costimulatory signal essential for T-cell receptor (TCR)-mediated T-cell activation (PubMed:10900005, PubMed:10951221, PubMed:11772392, PubMed:17287217). Acts as a positive regulator of T-cell coactivation, by binding at least ADA, CAV1, IGF2R, and PTPRC (PubMed:10900005, PubMed:10951221, PubMed:11772392, PubMed:14691230). Its binding to CAV1 and CARD11 induces T-cell proliferation and NF-kappa-B activation in a T-cell receptor/CD3-dependent manner (PubMed:17287217). Its interaction with ADA also regulates lymphocyte-epithelial cell adhesion (PubMed:11772392). In association with FAP is involved in the pericellular proteolysis of the extracellular matrix (ECM), the migration and invasion of endothelial cells into the ECM (PubMed:10593948, PubMed:16651416). May be involved in the promotion of lymphatic endothelial cells adhesion, migration and tube formation (PubMed:18708048). When overexpressed, enhanced cell proliferation, a process inhibited by GPC3 (PubMed:17549790). Acts also as a serine exopeptidase with a dipeptidyl peptidase activity that regulates various physiological processes by cleaving peptides in the circulation, including many chemokines, mitogenic growth factors, neuropeptides and peptide hormones such as brain natriuretic peptide 32 (PubMed:10570924, PubMed:16254193). Removes N-terminal dipeptides sequentially from polypeptides having unsubstituted N-termini provided that the penultimate residue is proline (PubMed:10593948).

Sequence similarities

Belongs to the peptidase S9B family. DPPIV subfamily.

Post-translational modifications

The soluble form (Dipeptidyl peptidase 4 soluble form also named SDPP) derives from the membrane form (Dipeptidyl peptidase 4 membrane form also named MDPP) by proteolytic processing.

Storage

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
-80°C
Appropriate long-term storage conditions
-80°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle

This product is an active protein and may elicit a biological response in vivo, handle with caution.

Supplementary info

This supplementary information is collated from multiple sources and compiled automatically.
Activity summary

Dipeptidyl peptidase 4 also known as DPP4 or CD26 functions as a serine exopeptidase. This enzyme is involved in cleaving dipeptides from the N-terminus of polypeptides. DPP4 with a mass of approximately 110 kDa is expressed in various tissues such as the liver intestines kidney and lymphocytes. It exists in both a membrane-bound form and a soluble form in blood plasma.

Biological function summary

DPP4 plays a significant role in glucose metabolism and immune function. The enzyme interacts with members of the immune system and regulates proteins such as chemokines growth factors and neuropeptides. DPP4 acts independently and is not known to be part of a larger complex. It modulates biological processes by inactivating peptide hormones and signaling molecules which impacts glucose homeostasis and immune responses.

Pathways

DPP4 impacts the incretin signaling pathway and the immune response pathway. Incretin hormones like glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP) are substrates of DPP4 and play important roles in glucose metabolism. DPP4 also interacts with proteins such as adenosine deaminase (ADA) which impacts T-cell function and immune regulation. The regulation of these pathways by DPP4 influences metabolic and immune health.

Associated diseases and disorders

DPP4 involvement is relevant in type 2 diabetes and immunological disorders. In type 2 diabetes DPP4 inhibitors modulate the incretin hormones improving glycemic control. Proteins like GLP-1 are affected by DPP4 activity connecting it to diabetes management. In autoimmune diseases altered DPP4 expression can impact immune cell functions influencing conditions such as rheumatoid arthritis. Through its effects on ADA and associated pathways DPP4 can influence both metabolic and immune-related disorders.

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3 product images

  • SDS-PAGE - Recombinant human DPP4 protein (ab79138), expandable thumbnail

    SDS-PAGE - Recombinant human DPP4 protein (ab79138)

    10% SDS-PAGE showing ab79138 at approximately 90kDa (2μg).

  • Functional Studies - Recombinant human DPP4 protein (ab79138), expandable thumbnail

    Functional Studies - Recombinant human DPP4 protein (ab79138)

    Optical density was measured at 405 nm after incubating enzyme solution with 1mM of p-nitroanilid as a substrate.

  • Western blot - Recombinant human DPP4 protein (ab79138), expandable thumbnail

    Western blot - Recombinant human DPP4 protein (ab79138)

    All lanes: Anti-CD26 antibody (ab86806) at 1 µg/mL

    Lane 1: Western blot - Recombinant human DPP4 protein (ab79138) at 0.1 µg

    Lane 2: Western blot - Recombinant human DPP4 protein (ab79138) at 0.01 µg

    Secondary

    All lanes: Western blot - Goat Anti-Rabbit IgG H&L (HRP) preadsorbed (Goat Anti-Rabbit IgG H&L (HRP) preadsorbed ab97080) at 1/5000 dilution

    Developed using the ECL technique.

    Performed under reducing conditions.

    Exposure time: 10s

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Product protocols

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